The stereo version uses two conductors for carrying the right and left channel audio data, and the third conductor for ground.
Modern jack plugs are available in three sizes: 6.5 mm, 3.5 mm, and 2.5 mm.Īll the three versions are available in mono (two conductor) and stereo (three conductor). The most common audio connector is the headphone jack. Let’s first discuss the types of headphone jacks before we differentiate the single and dual jacks. Headphones with Microphone with One or Two Jacks
